What is a spring ring clasp?
By Jared James · Last updated 21 May 2026
Definition
A spring ring clasp is one of the most common ways to fasten a necklace or bracelet. It is a small hollow circle of metal with a spring-loaded plunger that opens a gap in the ring when pressed, allowing the attached jump ring or chain end to slip in, then snapping shut when released. It is inexpensive to produce, works reliably for lightweight chains and pendants, and is found on everything from delicate gold necklaces to everyday silver chains.
Frequently asked questions
- How does a spring ring clasp work?
- A small lever or plunger on the clasp compresses a spring inside, pulling a section of the ring away to create an opening. Once the chain end or jump ring is inserted, you release the lever and the spring closes the gap, holding everything in place.
- Is a spring ring clasp secure?
- It is reliable enough for lightweight jewellery, but it is not the strongest clasp available. For heavier necklaces or pieces you want to be very sure will not come undone, a lobster claw or toggle clasp offers more security.
- What is the difference between a spring ring and a lobster claw clasp?
- A spring ring is a full circle with a spring mechanism, while a lobster claw is an elongated, asymmetric clasp shaped like a lobster claw that is easier to grip and generally considered more secure. Lobster claws have largely replaced spring rings on higher-quality jewellery.
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